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Anyone know what's in CoverFREE? It's said to last a week and seems "thicker" than heatsaver. I've been making the magic ceteryl alcohol mixed in isopropanol as found on google. I always wondered if there was a way to dissolve more ceteryl and make something "thicker" that didn't need to be...

I know the original topic wasn't thermometers, but it is now :) When a thermometer is inconvenient to get to, make one up... "During the renovation, rangers stopped making the afternoon check at the weather station. Instead of listing N/A, or not available, for Death Valley, AccuWeather listed...

I know you solved your problem with the RO people, and I may also, but I'm still considering a water softener solution. Questions for the very helpful chemists: -I'm thinking of (re)circulating the pool water through a softener. -Would a water softener work with the salt water in a SWG pool...

I don't think this is a good idea. The PH seemed extremely low. I don't think we want that running through the plumbing? And I don't think clarifiers/floculants work fast enough to get the precipitate on the first pass. I was thinking of lining my spa with a plastic dropcloth and using it as a...

A pound reduces "CH by almost 10 ppm in 10,000 gallons"? Oops there goes my plan. After seeing the "drifts" in solarboys pics after adding "a few ounces" of oxalic, it looked like many, many pounds of CH. In 20K gallons, I'd need an awful lot of oxalic acid (80 Lbs? at $9 (retail)/lb) and lots...

I'm a computer programmer, not a chemist, so forgive me in advance... I get the disassociation NaCl's sodium and chloride to make chlorine. So, why don't I need to eventually add more salt to keep me from running out of Cl? Well several pool "experts" have told me that the "used up cl"...

Sorry in advance for the long post. Two comments/topics both in regards to reducing ch in my pebble-tech, swg pool that has impermeable scale on natural stone at waterline. My CH is 650-750 1. Regarding putting a filter downstream of the SWG to catch the chunks it throws off when reversing...

Wow Chem Geek! a fountain of knowledge and response in 10 minutes! I found Solarboy's adventures with Oxalic Acid (oxalic-acid-treatment-and-calcium-oxalate-worries-t32659.html?hilit=oxalate), but he didn't mention if it lowered his CH and it seems he had trouble filtering out the precipitate...

Lime to reduce hardness - was Re: Can lime be used to raise What about using pickling lime to reduce hardness? I found several references that say it makes calcium precipitate out? http://www.tutorvista.com/content/chemi ... -water.php